DatapacksJava
No Generation -Y
Removes the generation of -Y in overworld. If there is a cave or lake at Y=0, then the air or liquid will NOT be replaced
I don't know my version or loader
Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.
No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.
No Generation -Y
Removes generation below Y=0 in overworld
Applications
- Don't like generation -Y or want to diversify the game
- Lags due to generation below Y=0
Changes
- Removes the generation of -Y in overworld
- The deepslate level starts at Y=32
- Ancient cities and Trial chambers appear at approximately Y=0
Pay attention
- The air of caves and liquids of lakes at Y=0 will NOT be replaced by bedrock
- Structures from experimental functions are not supported
- Trial chambers (1.20.4-1.20.6)
Verified by MCModsHub
- Downloads as DP.No_Generation_-Y-1.20.2.zip
- Download size: 74 KB
- Download link checked 1 Sept 2026 — working
These come from our own check of the pack file, not from the source page.